JP2726958B2 - Bunk bed flat knitting machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a two-bed flat knitting machine in which an upper needle bed is further provided on a lower needle bed with their heads approaching.

[0002]

2. Description of the Related Art A two-stage bed flat knitting machine is known in which an upper needle bed is positioned above a single lower needle bed, the heads thereof are brought close to each other, and a knitted fabric is knitted by the needles of one of the upper and lower needle beds. Have been.

In this type of knitting machine, when the lower needle is raised for knitting the fabric with the needle of the lower needle bed, the upper needle is prevented from coming into contact with the head of the upper needle bed. There is a bed provided with a retreat mechanism. However, in such a case, the apparatus is complicated due to the retreat mechanism, and it is difficult to always accurately position the needle bed at a predetermined position when the needle bed advances. There was a possibility that the uniformity might be impaired.

In addition, there has been a case where a space for installing a knitted fabric holding device such as a movable sinker for holding a knitted fabric cannot be obtained.

[0005]

SUMMARY OF THE INVENTION In view of the foregoing, the present invention provides a two-bed flat knitting machine in which the needles of the upper and lower needle beds do not move the needle bed. A bunk bed capable of raising and lowering without interfering with each other and knitting a loop formed by both upper and lower needles in a uniform size without having a knitting fabric lowering device The purpose is to obtain a flat knitting machine.

[0006]

According to the present invention, a head is formed in a chevron.
In a bunk bed flat knitting machine in which the upper needle bed is provided with the head approaching each other above the lower needle bed provided oppositely, the upper needle bed and the lower needle bed in the head needle plate of the upper needle bed are separated. provided fulcrum at an intermediate position, the sinker is supported between a position where it can engage the each of the knitted loop by the needle of the knitting loops and lower needle bed by the needle of the upper needle bed swingably feed to the needle At the time of thread
Turns the sinker upwards and advances the sinker.
Rutotomoni is al leave, sinker swing to engage the said sinker
Moving sinker jack and loop pusher extending in the knitting width direction.
The upper needle at the tip of the shank, and slide it in the
The lower needle of the lower needle bed
Retreats to the retracted position from within the ascending trajectory of the lower needle
Advance as the upper needle in the upper needle bed rises
The <br/> a knock-over bit supporting the upper needle out, the head needle plates to advance and retreat possible sliding fit, by placing the upper needle on the knock-over bit shank, and sinker spacer The upper needle is clamped by a head needle plate.

[0007]

The upper needle placed on the knockover bit slidably supported by the needle plate of the upper needle bed so as to be able to advance and retreat is repeatedly advanced and retracted by the cam of the carriage via the needle jack. Separately from this, when the knitting by the upper needle is completed, the knockover bit is also retracted via the butt of the knockover bit and the advancing / retreating means such as a cam on a carriage which comes into contact with the bat. Due to the retraction of the knockover bit, the head of the upper needle bed does not have any obstacles even if the lower needle is raised.

A sinker is provided at the head of the needle plate and supported swingably between the lower needle bed and the upper needle bed. The sinker is knitted by the upper or lower needle, and the knitting yarn is formed by the needle. when draw is to downward movement by the action of the carriage the cam via the sinker jack receives the loop of knitting yarn in the knitted fabric forming the edge of the edge of their respective sinkers, retaining bract the size of the loop constant When
When the needle advances , the stitch holding protrusion provided below the knitted fabric forming edge of the sinker raises the need.
The rise of the knitted fabric that is going to rise with the

[0009]

BRIEF DESCRIPTION OF THE DRAWINGS FIG.

The knitting machine of the present invention is a four-bed knitting machine in which an upper needle bed 2 is supported on a lower needle bed 1 provided with a mountain-shaped top opposed to each other. It is symmetrical with respect to the center line XX passing through the tooth opening where the heads 1A and 2A are concentrated, and FIG. 1 shows only the left half of the center line XX.

In the illustrated example, the upper needle bed 2 is supported by the lower needle plate 3A of the lower needle bed 1, but the upper and lower needle beds 2, 1 may use separate needle plates. The lower needle bed substrate 4 is provided with a plurality of needle plate grooves 5 like the conventional needle bed, and the lower needle plates 3A and 3B are fitted into the grooves 5, and the needle bed substrate 4 and the lower needle plate 3
A wire 9 is passed through notches 7 and 8 provided in each of A and 3B to fix them. As shown in FIG. 3A, the lower needle plate 3A has a lower needle guide portion 10 extending from the head to the tail of the lower needle bed 1 and an extension portion extending above the lower needle guide portion 10 above the head. Plate 11 and an upper needle bed substrate support plate 12 located on the upper edge of the needle plate 3A behind the plate 11
And a fixed beam insertion hole 15 for inserting a fixed beam 14 of an upper needle bed fixing member 13 to be described later, a sinker support hole 16, a needle blade guide groove 17, and wire insertion holes 18A, 18B, and 18C. , ..., etc. The upper needle bed substrate support plate 12 is provided with an inclined support surface 20 for supporting the upper needle bed substrate 19 (FIG. 4). A wedge-shaped notch 21 is provided at the boundary with the outer needle plate 11. The lower needle plate 3B shown in FIG. 3B has a structure in which the upper needle bed substrate support plate 12 of the extended portion of the lower needle plate 3A extending above the head is removed.

The lower needle plates 3A and 3B are alternately inserted or a plurality of 3Bs with respect to 3A are inserted alternately into the needle plate groove 5 of the lower needle bed substrate 4, and the wires 9 are inserted into the notches 7 and 8 as described above. The lower needle bed substrate 4 and the needle plates 3A, 3B are fixed by passing through, and a needle groove 22 is formed between the lower needle plates 3A, 3B. A lower needle 23 is slidably inserted into the needle groove 22.

The upper needle bed 2 is fixed to the lower needle bed 1 by a fixing member 13 by the following means. In the illustrated example, the head 2A of the upper needle bed 2 has the same needle plate as the head 1A of the lower needle bed 1, and the head needle plate 11 is the needle plate of the head 2A of the upper needle bed 2. The fixing member 13
Engaging means consisting of a wedge-shaped head 24 and a wedge-shaped notch 25 for engaging the upper needle bed substrate 19 with the upper needle bed substrate support plate 12 of the lower needle plate 3A;
Locking means including locking member 26 is provided.

The upper needle bed substrate 19 is placed on the support surface 20 of the upper needle bed substrate support plate 12 of the lower needle plate 3A, and the wedge-shaped head 24 at the tip of the upper needle bed substrate 19 is attached to the lower needle plate 3A. It contacts the wedge-shaped notch 21. A cutout 25 is provided in the upper needle bed substrate 19 at a position facing the end of the upper needle bed substrate support plate 12, and a wedge-shaped end of one end of a band-shaped locking member 26 extending in the knitting width direction of the knitting machine. The portion 27 is engaged with the notch 25, and the other end is in contact with the end portion 28 of the upper needle bed substrate support plate 12 of the lower needle plate 3A.
And the fixed beam insertion hole of the lower needle plate 3A
A bolt 29 is screwed between the fixing beam 14 extending in the knitting width direction inserted into the knitting direction and the locking member 26, and by tightening the bolt 29, the wedge-shaped head 24 and the notch 25 of the upper needle bed substrate 19 are formed. The dovetail portion 30 is gripped by the wedge-shaped notch 21 of the lower needle plate 3A and the wedge-shaped end 27 of the locking member 26, and the upper needle bed substrate 19 is fixed on the lower needle plate 3A.

The upper needle bed substrate 19 is shown in FIG. 4, and the upper needle plate 31 is shown in FIG. A needle plate groove 32 is provided in the upper needle bed substrate 19 at the same pitch and the same phase as the lower needle bed substrate 4, and the upper needle plate 31 is inserted.

A wire 36 is inserted between a notch 34 provided at the upper part of the head of the upper needle bed substrate 19 and a notch 35 provided at a lower part of the head of the upper needle plate 31 to fix the both. An upper needle groove 37 is formed between the adjacent upper needle plates 31, 31, and an upper needle 38 is slidably inserted therein.

The head needle plates 11 of the lower needle plates 3A and 3B have exactly the same shape. Then, a sinker spacer 41, a sinker 42, a sinker jack 43, and a knockover bit are attached to the head needle plate 11.
There are 44 etc. The details will be described with reference to FIGS. 2, 3, 6 to 13.

A sinker spacer 41 is provided on a step 45 provided on the head needle plate 11 of the lower needle plates 3A and 3B.
Position. The sinker spacer 41 (FIG. 12) has an inverted U-shaped wire insertion notch 46 at the lower part of the tail, an engaging recess 48 for inserting the metal band 47 at the upper edge, and a lower edge at the edge extending below the head. It has a bending piece 49 for holding down the needle 23.
Then, the sinker spacer 41 connects the tail wire insertion notch 46 to the enlarged step portion 50 of the head needle plate 11 (FIG. 3, FIG.
6), the lower needle plates 3A and 3B are connected in a row and engaged with the wire 51 inserted into the wire insertion hole 18B, and the concave portion 52 at the lower part of the head is engaged with the wire 53 similar to the wire 51. Then, it is fixed to the head needle plate 11.

By fixing the sinker spacer 41 to the head needle plate 11, the head needle plate 11 is located between the sinker spacer 41 and the top of the head needle plate 11.
The top step 54 (FIG. 3C) creates a gap into which the sinker jack 43 is inserted (FIG. 7). The step 54
Is provided up to the head end of the head needle plate 11, and a sinker 42 is fitted to the head end portion as described later. The sinker jack 43 is formed of an elongated plate-like body as shown in FIG. 10, and the thin portion near the tail portion is bent slightly in a V-shape to connect the sinker jack 43 to the step portion 54.
A butt 55 is formed on the upper part, and a downwardly engaging concave part 56 is formed on the head part. The engaging concave portion 56 is engaged with an engaging convex portion 57 provided on the upper edge of the sinker 42.
The sinker 42 is also inserted into the same gap defined by the step 54 at the tip of the head of the head needle plate 11 similarly to the sinker jack 43 as described above, and is provided at the head of the head needle plate 11 and has a top step. A swing shaft portion 58 provided on the tail portion is fitted into a sinker support hole 16 opened in contact with a step portion at the tip of the head continuous to 54, and the sinker 42 is swingably supported. The sinker 42 has square portions 59 and 6 in the vertical direction of the front edge.
0, a knitted fabric forming edge 61 and a stitch holding projection 62 are formed therebetween.

The step 4 of the head needle plate 11
On the side opposite to 5, there is provided a guide groove 64 into which the transfer blade 63 of the upper needle 38 enters and slides.
A knockover bit 44 is slidably provided on the guide groove 64 with the knockover bit 44 mounted on the wires 51 and 53. The knockover bit 44 has a butt 66 at the tail of a flat shank 65 on which the upper needle 38 is mounted, and a square loop holder 67 at the head. The hook 68 of the upper needle 38 is placed above the loop retainer 67.
(Shown in FIG. 8) . Knockover bit 44
A cam of a carriage (not shown) abuts on the butt 66 so that the bat 66 can advance and retreat along the upper needle 38. The butt 66 of the knockover bit 44, the butt 55 of the sinker jack 43, and the like fit into the gap of the head needle plate 11 in which the comb-shaped needle plate spacers 69 are arranged in parallel so that the positions can be accurately maintained. The spacing is kept accurate. When knitting a rib knitting structure with the knitting machine of the present invention, the knitting yarn does not contact the sinker plate provided between the needles because the knitting yarn is hung on the needle beds of the front and rear needle beds. The yarn will come into contact with the tip of the needle bed. Since the knitting machine of the present invention has an upper bed and a lower bed, it is necessary to prevent the needle of the lower bed from colliding with the tip of the upper bed when ascending the needle of the lower bed. By retracting the knockover bit placed on top, the same operation and effect as retreating the needle bed tip are obtained.

When the knitting operation is performed in the knitting machine of the present invention, the needles of both beds 1 and 2 are operated by cams (not shown) on carriages corresponding to the lower needle bed 1 and the upper needle bed 2, respectively. At the same time, in the upper needle bed 2, the knockover bit 44 advances and retreats together with the upper needle 38 in accordance with the operation of the lower needle 23 , thereby preventing the lower needle 23 from moving forward and backward. The sinker jack 43 is operated to rotate the sinker 42 up and down as shown in FIG.

FIG . 15 shows knitting with the lower needle 23.
In the figure, A is the same when the sinker turns upward, and B is the same.
It is a side view at the time of a downward turning movement. By lower needle 23
23, 38, sinker when knitting knitted fabric
Jack 43, sinker 42, knockover bit 44
A, B, C in FIG. 16 and FIG.
A, B, and C of FIG. That is, A in FIG.
The sinker 42 has advanced and the sinker 42 is turning downward.
And the knockover bit 44 in the advanced state.
FIG. 16B shows the start of raising of the lower needle,
The over bit 44 raises the lower needle 23 before this
Retreat to a position that does not obstruct Lower needle 233 goes up
The sinker keeps its downward rotation while the needle
The old loop of the knitted fabric where the lock 23 is
The stitch holding projection of the sinker 42 rises with the rise.
Press at 62. In FIG. 16C, the lower needle 23 is the highest.
Position, and the sinker jack
43 retracts and sinker 42 swings upward.
You. Then, before the lower needle 23 descends, the sinker 4
2 moves downward (A in FIG. 17) and moves below the lower needle 23.
The knitting yarn 7 locked on the hook of the lower needle 23 by descending
1 (shown in FIG. 15) is retracted, thereby
The knitting yarn 71 hangs on the knitted fabric forming edge 61 of FIG.
As shown in FIG.
The size of the loop 72 formed between the
At the same time, knockover bit 44 advances (FIG. 1).
7B). With the lowermost of the lower needle 23, the new yarn supply
The loop of the knitted fabric forming edge 61 of the sinker 42 and the lower need
To form a predetermined loop length
(C in FIG. 17).

Similarly, the swinging state of the sinker 42 during knitting by the upper needle 38 is shown in FIG. 18, and the order of movement of the needle, the sinker jack and the knockover bit is shown in FIG.
B, C, and A, B, and C in FIG. 20, when knitting with the upper needle 38, a loop 75 is formed by the knitting yarn 71 drawn into the hook of the upper needle 38, and the knitting that has already been performed following the loop 75 The ground 76 abuts on a loop retainer 67 provided at the tip of the knockover bit 44 that has advanced, thereby preventing the lower knitted fabric from being pulled into the hook as the needle retreats.

[0024]

As described above, in a two-bed flat knitting machine in which the upper needle bed is provided above the lower needle bed with their heads approaching each other, the upper needle bed and the lower needle bed in the head needle plate of the upper needle bed are separated. A fulcrum is provided at an intermediate position, and the sinker is swingably supported between a position where it can be engaged with each of the knitted fabric loop formed by the needle of the upper needle bed and the knitted fabric loop formed by the needle of the lower needle bed. Engage the sinker jack for rocking with the sinker,
Extends to the tip of the sinker jack and shank in the knitting width direction
A knockover bit having a loop retainer is slidably fitted to the head needle plate so as to be able to move forward and backward , and the upper needle is placed on the shank of the knockover bit,
Since the upper needle is sandwiched between the sinker spacer and the head needle plate, the needles of the upper and lower needle beds can move up and down without interfering with each other without moving the needle bed, and a knitted fabric lowering device can be used. Even without having, the loop formed by the upper and lower needles can be knitted with the same size.

[Brief description of the drawings]

FIG. 1 is an overall schematic side view, showing only one side of the center line.

FIG. 2 shows a lower needle bed substrate, where A is a longitudinal side view and B is an enlarged plan view of a head.

FIG. 3 is a side view and a sectional view of a lower needle plate,
A has an upper needle bed substrate support plate,
B is an example having no upper needle bed substrate support plate, and C is a cross-sectional view taken along line CC of A.

4A and 4B show an upper needle bed substrate, in which A is a longitudinal side view, and B is an enlarged plan view of a head.

5A is a side view of the upper needle plate, and FIG. 5B is a front view thereof.

6 is a sectional view taken along line VI-VI in FIG. 9;

FIG. 7 is a sectional view taken along line VII-VII in FIG. 9;

8 is a sectional view taken along line VIII-VIII in FIG.

FIG. 9 is a sectional view taken along line IX-IX in FIG. 6;

FIG. 10 shows a sinker jack, where A is a side view,
B is a bottom view.

FIG. 11 is a side view of the sinker jack.

FIG. 12 is a side view of the sinker spacer.

FIG. 13 shows a knockover bit, where A is a plan view, B is a side view, and C is a rear view.

FIG. 14 is a vertical sectional side view of the needle bed head showing a swinging state of the sinker, wherein A shows a state where the sinker is turning upward and B shows a state where the sinker is turning downward.

FIG. 15 is a longitudinal side view of a needle bed head showing a relationship between a sinker, a needle, and a knitted loop at the time of knitting with a needle of a lower needle bed, where A is the upper turn of the sinker, and B is the lower side of the sinker. This shows a turning motion.

16A, 16B, and 16C are side views sequentially showing movements of a sinker jack, a sinker, a knockover bit, and upper and lower needles when knitting is performed with the needles of a lower needle bed.

17A, 17B, and 17C are side views sequentially showing the operation following FIG. 16C.

FIG. 18 is a longitudinal side view of a needle bed head showing a relationship between a sinker, a needle, and a knitted loop when knitting with a needle of an upper needle bed, where A is the upper turn of the sinker, and B is the lower side of the sinker. This shows a turning motion.

FIGS. 19A, 19B and 19C are side views sequentially showing movements of a sinker jack, a sinker, a knock over bit, and upper and lower needles when knitting is performed with the needles of the upper needle bed.

20A, 20B, and 20C are side views sequentially showing the operation following FIG. 16C.

[Explanation of symbols]

 1 Lower Needle Bed 1A Lower Needle Bed Head 2 Upper Needle Bed 2A Upper Needle Bed Head 11 Head Needle Plate 16 Sinker Support Hole 38 Upper Needle 42 Sinker 43 Sinker Jack 44 Knockover Bit

Claims (1)

(57) [Claims] 1. A two-stage bed flat knitting machine in which an upper needle bed is provided above a lower needle bed provided with a head opposed to a chevron, with the heads approaching each other. A fulcrum is provided at an intermediate position between the upper needle bed and the lower needle bed in the above, and it is swingable between positions where the knitted fabric loop by the needle of the upper needle bed and the knitted fabric loop by the needle of the lower needle bed can be respectively engaged. Support the sinker, and rotate the sinker upward when feeding the needle.
Rutotomoni evicted from the yarn feeder traveling the sinker, sinker jack for sinker swing to engage the said sinker
And a loop presser at the tip of the shank
The upper needle slides in the forward / backward
Lower needle rises when lower needle of needle
Retreat from the trajectory to the retracted position, and conversely, the upper needle bed
When the upper needle of the
A knock-over bit supporting, the head needle plates to advance and retreat possible slide fitted, an upper needle is placed on the knock-over bit shank, said upper needle sinker spacer and head needle plates A two-bed bed flat knitting machine sandwiched.